EVERGREEN

Plant Encyclopedia

Hamamelis japonica var. japonica

Hamamelis japonica var. japonica (Japanese witch hazel, "Mansaku")

Japanese name: マンサク (満作)
Scientific name: Hamamelis japonica var. japonica

Hamamelis japonica var. japonica

[Overview]
A deciduous shrub to small tree 2–5 m tall, found on the Pacific side, sometimes exceeding 10 m.
Young branches and petioles have rather many stellate hairs.
The leaves are simple and alternate, rhombic-ovate to round, 5–10 cm long and 3.5–7 cm wide.
Stellate hairs grow on both surfaces of the leaves.
The leaf margin has rounded, wavy teeth.
The petiole is 0.5–1.5 cm.
The flowers open before the leaves unfold and grow in clusters of 2–4 in the leaf axils.
The flowers are yellow with 4 petals; the petals are narrow, ribbon-like, twisted, and 1–1.5 cm long.
There are 4 short stamens.
The fruit is a capsule 1–1.3 cm long and 0.8–0.9 cm wide, densely covered with pale brown stellate hairs.

[Cultivation]
Propagate by layering.
It prefers a sunny, well-drained, moisture-retentive, fertile soil.
It is not suited to places with strong afternoon sun or severe summer dryness, because it drops its leaves there.
For potted plants, water thoroughly when the soil surface dries.
For plants in the ground, rainfall is sufficient except when sunny summer weather continues and the soil dries out.
Apply organic fertilizer around the plant in winter; applying it in spring as well speeds growth.
Prune after flowering and before new shoots emerge, but since the natural tree form is often enjoyed, limit pruning to removing dead branches.
There are no particular pests or diseases.

[Notes]
There are several theories about the origin of the Japanese name, such as that it is a corruption of "mazu saku" ("blooms first"), since the plant flowers early in spring.

Details

Names
English: Japanese witch hazel
Japanese: マンサク(満作)
Life form
Shrub, Small tree
Evergreen / deciduous
Deciduous
Leaf type
Broadleaf
Habit
Terrestrial
Planting (or sowing) season
February, March, October, November
Flowering season
February, March, April
Distribution or origin
Japan (Honshu: western Kanto and west, Shikoku, Kyushu)
Growth form
Upright, Branching
Height
2000–5000 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Alternate
Leaf margin
Undulate, Serrate
Number of petals
4
Flower color
Yellow
Leaf color
Yellow, Green
Availability of seeds and plants
Low
Form sold
Seedlings
Sun exposure
Full sun
Water needs
Moderate
Soil needs
Required
Suitable uses
Bonsai, Parks and gardens
Hardiness zone
5a–8b
Japan Flower Trade Code
57772

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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